A digital image watermarking algorithm based on combining two transforms; DWT and DCT.
In your paper, you use HL_2 sub-band,
but your code use LL_1 sub-band
DWT-DCT-Digital-Image-Watermarking/dct_dwt watermarking code.py
Lines 134 to 135 in 4879930
I can't find anything related to the PN_sequence generation in your embedding algorithm.
If you used a different paper/algorithm, at least you could mention that in the Readme.md file.
You should have done something like in this repo:
https://github.com/earthat/Digital-Image-Watermarking-Using-Optimized-DWT-DCT/blob/master/embed.m
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